haha. so i didn't deal with the car yet, but obviated my need for one of these. i forgot that the setup for our solar array *already had* a custom ethernet to ethernet bridge that ran from our living room (where the enphase solar monitor is) to the office upstairs (where the router is)

application of 2 long ethernet cables and an old 100meg switch, and now our receiver, a Pioneer VSX-1020, is also online. it was the only device in our system which was not: tivo series 3, wii, insignia tv, appletv all do wifi but none will bridge it!